DWR问题解决（收藏）

dwr遇到这种错误：
org.directwebremoting.util.CommonsLoggingOutput error
严重: A request has been denied as a potential CSRF attack.

在参照dwr的官方网站时，如果在后台出现如下的提示信息：A request has been denied as a potential CSRF attack

则，需要在web.xml中的如下配置修改一下

xml 代码

1. < servlet >   
2.      < servlet-name > dwr-invoker servlet-name >   
3.      < servlet-class > uk.ltd.getahead.dwr.DWRServlet servlet-class >   
4.      < init-param >   
5.          < param-name > debug param-name >   
6.          < param-value > true param-value >   
7.      init-param >   
8. servlet >   

修改为：

xml 代码

1. < servlet >   
2.      < servlet-name > dwr-invoker servlet-name >   
3.      < servlet-class > uk.ltd.getahead.dwr.DWRServlet servlet-class >   
4.      < init-param >   
5.          < param-name > debug param-name >   
6.          < param-value > true param-value >   
7.      init-param >   
8.      < init-param >   
9.          < param-name > crossDomainSessionSecurity param-name >   
10.          < param-value > false param-value >   
11.      init-param >   
12.    servlet >   

即加入了跨域调用功能

 

报错:allowScriptTagRemoting is false

在WEB.xml中加入:

<init-param>
<param-name>allowScriptTagRemoting</param-name>
<param-value>true</param-value>
</init-param>